It sounds like Hunter had a little bit too much time on his hands. This prank is beyond sick as it involves the slaying of innocent animals and some very gruesome suggestions. I have to wonder what kind of demon is ruling Hunter's thinking processes, and why Mr. Nicholson did not have this man incarcerated immediately upon discovering that he pulled such a psychotic prank.
People seem to think the more outrageous and elaborate a prank is, the funnier it is. When they go to a lot of trouble for a prank they want a big reaction. Often, that involves going too far and trying to pull off a prank that is in very poor tastes or is potentially dangerous.
Pranks almost always go too far. This is because people are first of all being fooled, at the very least. In worst-case scenarios physical or material harm is being done. People need to think very carefully before they play a prank on someone. With so many cameras and the potential to hurt people, it isn't worth it.
No, pranks don't go too far. If something is truly a prank, then it goes just far enough. A good prank requires creativity and a keen understanding of the person or people you are pranking. The only parties fit to judge the merits of a prank are those who are directly involved in its execution or reception.